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Questions in physics

[Done] Two equal forces act on two different objects, one of which has a mass ten times as large as the other. Will the more massive object have a larger acceleration, an equal acceleration, or a smaller acceleration than the less massive object? Explain.

[Done] What are four physical changes a candle undergoes when a part of it is broken off?

[Done] How do you find the acceleration of a car between two points on a velocity-time graph?

[Done] A professional cyclist rides a bicycle that is 92 percent efficient. For every 100 joules of energy he exerts as input work on the pedals, how many joules of output work are used to move the bicycle?

[Done] question number two. please help.

[Done] What is the equation to find current (in amps) in a parallel circuit?

[Done] What property or properties of a wave determine its speed?

[Done] Workers load a 500 kg safe onto an elevator that lifts it 90 m to the twentieth floor of a building. How much work did the elevator do on the safe?

[Done] How long does it take to do 432 joules of work with 75 watts of power?

[Done] What can you put on metal letters to protect them from acid rain?